.header {
  position: relative;
  background-color: rgb(54,113,5);
  top: 0px;
  right: 0px;
  left: 0px;
  border-bottom: 3px solid rgb(215,228,95);
}

.logo {
  padding-left: 136px;
  position: relative;
}

.form {
  position: absolute;
  width: 220px;
  height: 60px;
  float: left;
  right: 20px;
  top: 5px;
  font-size: 12px;
  padding: 10px;
}

#user_name{
    width: 130px;
}

.form >button{
    margin-left: 10px;
}

form >a{
    text-decoration: none;
    color: aliceblue;
    padding-right: 50px;
}